Bump google.golang.org/grpc from 1.29.0 to 1.53.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.29.0 to 1.53.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.29.0...v1.53.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -3,8 +3,8 @@ module github.com/serverwentdown/leet
 go 1.12
 
 require (
-	github.com/golang/protobuf v1.4.0
+	github.com/golang/protobuf v1.5.2
 	github.com/rpi-ws281x/rpi-ws281x-go v1.0.5
-	google.golang.org/grpc v1.29.0
-	google.golang.org/protobuf v1.21.0
+	google.golang.org/grpc v1.53.0
+	google.golang.org/protobuf v1.28.1
 )